EP1175173B1 - Method and apparatus for cleaning extractor hoods - Google Patents
Method and apparatus for cleaning extractor hoods Download PDFInfo
- Publication number
- EP1175173B1 EP1175173B1 EP00920529A EP00920529A EP1175173B1 EP 1175173 B1 EP1175173 B1 EP 1175173B1 EP 00920529 A EP00920529 A EP 00920529A EP 00920529 A EP00920529 A EP 00920529A EP 1175173 B1 EP1175173 B1 EP 1175173B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- extractor hood
- air inlet
- spray
- air
- cleaning water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/02—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using chambers or hoods covering the area
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
Definitions
- the invention relates to a method for cleaning Extractor hoods, with a rotating one spraying device in the interior of the extractor hoods Cleaning water is sprayed and the cleaning water withdrawn from a sump on the floor of the interior becomes.
- the invention also relates to a device to carry out the method, with one in the interior an extractor hood arranged rotatable Spray device and with one on the floor of the interior the extractor hood arranged sump for Cleaning water.
- Such extractor hoods are used in kitchens deduct the resulting haze.
- At the lower end of the impact separator is usually a collecting trough arranged that the descending Condensate is collected and discharged.
- the object of the invention is a method of the beginning to create the genus with which an essential Simplify and facilitate the cleaning process of the entire interior of an extractor hood becomes.
- This object is achieved in that the entire interior of the extractor hood at intervals by means of the rotatable spray device essentially is completely sprayed with cleaning water.
- Impact separator is provided that the back wall the impact separator is sprayed with cleaning water.
- An inventive device for performing the This is a procedure with an extractor hood characterized that the spray device for Cleaning water as a spray lance with several, in Distributed lengthways and circumferentially Spray nozzles is designed to be rotatable about its longitudinal axis stored and connected to a rotary drive.
- the spray lance is preferably essentially parallel and at a distance from the rear of an impact separator arranged. This is done in a constructively simple manner a spraying device that realizes the whole Interior of the extractor hood sprayed, the of the spray jets exerted on the spray head Reactive forces at the same time to drive the spray head serve. The need for a separate rotary drive for the spray head. In addition, only one very small number of spray nozzles required.
- the extractor hood shown in FIG. 1 has a housing 1 on, in the sloping front wall 2, a window recessed is in which a baffle separator 3 is used removably is.
- a blower 4 which is only schematically indicated in FIG. 1, sucks through the impact separator 3 into the interior 5 the extractor hood 1 from entering haze.
- the impact separator 3 shown in detail in FIG. 2 consists of two grids 3a and 3b of U-shaped bars 6 and 7, which are directed towards each other with their openings.
- the U-profile bars 6 and 7 interlock with one another in this way, that each U-profile rod 6 of a grid 3a each with two adjacent U-shaped bars 7 of the other grid 3b is nested.
- Fig. 2 with dash-dotted lines is indicated, arises for the air laden with condensate is a meandering flow path with repeated complete redirection. That in the air The condensate contained hits the surfaces of the U-profile bars 6 and 7 and mostly separates there.
- a condensate trap 8 arranged, which in the U-profile bars 6 and 7th collecting condensate and to a collection point leads.
- the two grids 3a are means Screws 9 and spacer 10 releasably together connected and removable so that they can be rinsed and so can be cleaned.
- a spray device in the interior 5 of the extractor hood arranged for cleaning water which is shown in the Embodiment has a spray lance 13 with several longitudinally and circumferentially distributed spray nozzles.
- the spray lance 13 is substantially parallel and in Distance to the rear of the impact separator 3 is arranged.
- she is in the side walls of the housing 1 about its longitudinal axis rotatably mounted and with a (not shown) Rotary drive connected and is at one end with Feeding cleaning water.
- Spray cleaning of the extractor hood is carried out in the specified manner time intervals, the length of which varies according to the seizure directed by condensate.
- the spray device has a longitudinally movable Has spray car, the spray nozzles at the Longitudinal movement of the spray trolley the inner walls of the extractor hood including the rear wall of the impact separator 3 sprinkle.
- the spray device has a longitudinally movable Has spray car, the spray nozzles at the Longitudinal movement of the spray trolley the inner walls of the extractor hood including the rear wall of the impact separator 3 sprinkle.
- such a device does not fall under the scope of the claims.
- an extractor hood its housing 1 'has a closed, to the sump 14 sloping bottom wall 16 on as well a side air inlet 17.
- a water collection channel 18 which has at least one falling drain line 19 connected to the collecting sump 14 is.
- the air inlet 17 has one above the water collection channel 18 arranged baffle 20 on for in the air inlet 17th entering spray jets of the spray device 13 '.
- the Baffle 20 is hereby deflected downwards Inner wall of the air inlet 17 is formed.
- the inlet-side bottom edge 21 of the air inlet 17 is Arranged above the water collection channel 18, so that the Bottom edge 21 dripping cleaning water into the water chamber 18 arrives.
- the entry side Bottom edge 21 of the air inlet 17 through a Round profile for example a tube, is formed.
- the air vent opening 22 is below the air inlet 17 of the extractor hood.
- the flow path of the air from the air vent 22 in the Air inlet 17 is around the rounded bottom edge 21 around deflected more than 120 °, preferably up to 180 °.
- This Deflection of the flow channel for the in the extractor hood entering air and the arrangement of the water collection channel 18 below the deflection point cause that in the Air inlet 17 entering portion of the cleaning water safely and is fully absorbed, but at the same time all interior surfaces of the extractor hood, on which Condensate can be cleaned by spraying become.
- the falling drain lines 19 are here Pipes arranged on both sides of the air collection hood 1a and on the collecting sump 14 connected.
- the spray device 13 has an axis of rotation 23, which is preferably vertical, rotatably mounted Spray head 24 on (Fig. 4), which rotates freely at the lower end a water supply line 25 is mounted.
- Spray nozzles 25 are located to the side of the rotatable spray head 24 arranged, the spray jets 26 angled in the manner are that the reaction forces they exert Apply torque around the axis of rotation 23. This will make the Spray head 24 driven to rotate.
- the spray head 24 is inclined upward directed flat jet nozzle 27 and an obliquely downward directed flat jet nozzle 28, so that during the rotary movement of the spray head 24 each point of the interior of the Extractor hood in by the rotational frequency of the spray head 24 sprayed predetermined short intervals and thus cleaned becomes.
Abstract
Description
Die Erfindung betrifft ein Verfahren zur Reinigung von Dunstabzugshauben, wobei mit einer drehbaren sprüheinrichtung im Innenraum der Dunstabzugshauben Reinigungswasser versprüht wird und das Reinigungswasser aus einem Sammelsumpf am Boden des Innenraums abgezogen wird. Die Erfindung betrifft außerdem eine Vorrichtung zur Durchführung des Verfahrens, mit einer im Innenraum einer Dunstabzugshaube angeordneten drehbaren Sprüheinrichtung und mit einem am Boden des Innenraums der Dunstabzugshaube angeordneten Sammelsumpf für Reinigungswasser.The invention relates to a method for cleaning Extractor hoods, with a rotating one spraying device in the interior of the extractor hoods Cleaning water is sprayed and the cleaning water withdrawn from a sump on the floor of the interior becomes. The invention also relates to a device to carry out the method, with one in the interior an extractor hood arranged rotatable Spray device and with one on the floor of the interior the extractor hood arranged sump for Cleaning water.
Derartige Dunstabzugshauben dienen dazu, den in Küchen entstehenden Dunst abzuziehen.Such extractor hoods are used in kitchens deduct the resulting haze.
Insbesondere beim Einsatz in Großküchen und ähnlichen Einrichtungen fällt eine erhebliche Kondensatmenge an, die soweit wie möglich aufgefangen und abgeführt werden muß.Especially when used in canteen kitchens and similar Facilities, there is a significant amount of condensate, which are collected and discharged as far as possible got to.
Hierzu ist es bekannt, am Lufteintritt in die Dunstabzugshaube einen Prallabscheider anzuordnen, in dem die eintretende Luft so stark umgelenkt wird, dass die darin enthaltenen Kondensattröpfchen auf Wände des Prallabscheiders prallen und dort abgeschieden werden. Zu diesem Zweck besteht der Prallabscheider beispielsweise aus mehreren, wechselweise ineinandergreifenden U-Profilstäben, die jeweils im Abstand zueinander angeordnet sind, um einen Luftdurchtritt zu ermöglichen. For this purpose it is known at the air inlet in the Extractor hood to arrange a baffle in which the incoming air is deflected so strongly that the contained condensate droplets on walls of the Impact separators bounce and be separated there. To this is the purpose of the impact separator, for example from several, alternately interlocking U-profile bars, each at a distance from each other are arranged to allow air to pass through.
Am unteren Ende des Prallabscheiders ist üblicherweise eine Sammelrinne angeordnet, die das herablaufende Kondensat auffängt und abführt.At the lower end of the impact separator is usually a collecting trough arranged that the descending Condensate is collected and discharged.
Im laufenden Betrieb lagern sich ständig Kondensattröpfchen aus der eintretenden.Abluft am-Prallabscheider ab, so dass dieser in Abständen gereinigt werden muss. Dazu ist es beispielsweise aus der Offenlegungsschrift DE 34 16 692 A1 bekannt, dass Sprühdüsen im Innenraum der Dunstabzugshaube im Abstand zum Prallabscheider so angeordnet sind, dass aus diesen Sprühdüsen versprühte Reinigungsflüssigkeit den Prallabscheider benetzt und reinigt.They are constantly stored during operation Condensate droplets from the incoming exhaust air on the impact separator so that it is cleaned at intervals must become. For example, it is from the Publication DE 34 16 692 A1 discloses that Spray nozzles in the interior of the extractor hood at a distance to the impact separator are arranged so that from these Spray nozzles sprayed cleaning liquid Impact separator wets and cleans.
Bei einem Verfahren der eingangs genannten Gattung (EP 0 703 414 A1) versprüht eine drehbare Sprüheinrichtung in einer Dunstabzugshaube Reinigungswasser, das aus einem Sammelsumpf am Boden des Innenraums abzogen wird. Die drehbare Sprüheinrichtung ist so gelagert, dass im wesentlichen nur die Abscheideeinrichtungen der Dunstabzugshaube durch die versprühte Reinigungsflüssigkeit gereinigt werden.In a method of the type mentioned at the beginning (EP 0 703 414 A1) sprays a rotating spray device in an extractor hood cleaning water that from a Collective sump is pulled off at the bottom of the interior. The rotatable spray device is mounted so that in essential only the separators of the Extractor hood through the sprayed Cleaning liquid to be cleaned.
Trotz der Verwendung solcher Prallabscheider, insbesondere aber auch ohne Verwendung eines Prallabscheiders, ist es unvermeidbar, dass ein Teil des Kondensats in die Dunstabzugshaube eintritt und sich an den Wänden des Innenraums und gegebenenfalls an der Rückseite des Prallabscheiders niederschlägt. Daher ist es erforderlich, die Dunstabzugshaube in vorgegebenen Intervallen zu reinigen. Diese Reinigung ist sehr arbeitsaufwendig, weil sie von Hand durchgeführt werden muß und weil der Innenraum der Dunstabzugshaube schwer zugänglich ist. Wenn vorhanden, muß der mit einem Rahmen versehene Prallabscheider abgenommen und gespült werden.Despite the use of such impact separators, but especially without using a Impact separator, it is inevitable that part of the Condensate enters the extractor hood and turns on the walls of the interior and possibly on the Precipitates the rear of the impact separator. thats why it is necessary to set the extractor hood in predetermined Clean intervals. This cleaning is very labor-intensive because they are carried out by hand must and because the interior of the extractor hood is heavy is accessible. If available, it must be with a frame provided impact separators are removed and rinsed.
Aufgabe der Erfindung ist es, ein Verfahren der eingangs genannten Gattung zu schaffen, mit dem eine wesentliche Vereinfachung und Erleichterung des Reinigungsvorgangs des gesamten Innenraums einer Dunstabzugshaube erzielt wird.The object of the invention is a method of the beginning to create the genus with which an essential Simplify and facilitate the cleaning process of the entire interior of an extractor hood becomes.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass der gesamte Innenraum der Dunstabzugshaube in Intervallen mittels der drehbaren Sprüheinrichtung im wesentlichen vollständig mit Reinigungswasser besprüht wird.This object is achieved in that the entire interior of the extractor hood at intervals by means of the rotatable spray device essentially is completely sprayed with cleaning water.
Damit ist eine wirksame und gründliche Reinigung des gesamten Innenraums der Dunstabzugshaube in einem automatisierbaren Arbeitsgang ohne Handarbeit möglich. Der Reinigungsvorgang kann somit in verhältnismäßig kurzen Intervallen durchgeführt werden. Dadurch verringert sich nicht nur die mögliche Geruchsbelästigung, sondern insbesondere auch das Brandrisiko wesentlich.This is an effective and thorough cleaning of the entire interior of the extractor hood in one automatable work process possible without manual work. The cleaning process can thus be proportionate short intervals. Thereby not only does the possible decrease Odor nuisance, but especially that Fire risk essential.
Der erforderliche zusätzliche Bauaufwand ist sehr gering, so dass auch bei vorhandenen Dunstabzugshauben eine nachträgliche Umrüstung möglich und wirtschaftlich vertretbar ist.The additional construction effort required is very low, so that even with existing extractor hoods retrofitting possible and economical is justifiable.
Zur Reinigung von Dunstabzugshauben, die einen aus ineinandergreifenden Profilstäben bestehenden Prallabscheider aufweisen, ist vorgesehen, dass die Rückwand des Prallabscheiders mit Reinigungswasser besprüht wird.For cleaning extractor hoods that keep you out interlocking profile bars Impact separator is provided that the back wall the impact separator is sprayed with cleaning water.
Eine erfindungsgemäße Vorrichtung zur Durchführung des Verfahrens mit einer Dunstabzugshaube ist dadurch gekennzeichnet, dass die Sprüheinrichtung für Reinigungswasser als Sprühlanze mit mehreren, in Längsrichtung und in Umfangsrichtung verteilten Sprühdüsen ausgeführt ist, die um ihre Längsachse drehbar gelagert und mit einem Drehantrieb verbunden ist.An inventive device for performing the This is a procedure with an extractor hood characterized that the spray device for Cleaning water as a spray lance with several, in Distributed lengthways and circumferentially Spray nozzles is designed to be rotatable about its longitudinal axis stored and connected to a rotary drive.
Vorzugsweise ist die Sprühlanze im wesentlichen parallel und im Abstand zur Rückseite eines Prallabscheiders angeordnet. Damit wird in konstruktiv einfacher Weise eine Sprüheinrichtung verwirklicht, die den gesamten Innenraum der Dunstabzugshaube besprüht, wobei die von den Sprühstrahlen auf den Sprühkopf ausgeübten Reaktionskräfte zugleich zum Drehantrieb des Sprühkopfes dienen. Die Notwendigkeit eines gesonderten Drehantriebs für den Sprühkopf entfällt. Darüber hinaus wird nur eine sehr geringe Anzahl von Sprühdüsen benötigt.The spray lance is preferably essentially parallel and at a distance from the rear of an impact separator arranged. This is done in a constructively simple manner a spraying device that realizes the whole Interior of the extractor hood sprayed, the of the spray jets exerted on the spray head Reactive forces at the same time to drive the spray head serve. The need for a separate rotary drive for the spray head. In addition, only one very small number of spray nozzles required.
Nachfolgend werden Ausführungsbeispiele der Erfindung näher erläutert, die in der Zeichnung dargestellt sind.The following are exemplary embodiments of the invention explained in more detail, which are shown in the drawing.
Es zeigt:
Die in Fig. 1 gezeigte Dunstabzugshaube weist ein Gehäuse 1
auf, in dessen schräger Vorderwand 2 ein Fenster ausgespart
ist, in das ein Prallabscheider 3 herausnehmbar eingesetzt
ist.The extractor hood shown in FIG. 1 has a
Ein in Fig. 1 nur schematisch angedeutetes Gebläse 4 saugt
die durch den Prallabscheider 3 hindurch in den Innenraum 5
der Dunstabzugshaube 1 eintretenden Dunst ab.A blower 4, which is only schematically indicated in FIG. 1, sucks
through the
Der in Fig. 2 in Einzelheiten dargestellte Prallabscheider 3
besteht aus zwei Gittern 3a und 3b von U-Profilstäben 6 und
7, die mit ihren Öffnungen gegeneinander gerichtet sind. Die
U-Profilstäbe 6 bzw. 7 greifen derart mit Abstand ineinander,
daß jeder U-Profilstab 6 des einen Gitters 3a jeweils mit
zwei benachbarten U-Profilstäben 7 des anderen Gitters 3b
verschachtelt ist. Wie in Fig. 2 mit strichpunktierten Linien
angedeutet ist, entsteht dadurch für die hindurchtretende,
mit Kondensat beladene Luft ein mäanderförmiger Strömungsweg
mit mehrmaliger vollständiger Umlenkung. Das in der Luft
enthaltene Kondensat prallt auf die Flächen der U-Profilstäbe
6 und 7 und scheidet sich dort größtenteils ab.The
Am unteren Ende des Prallabscheiders 3 ist eine Kondensatauffangrinne
8 angeordnet, die das in den U-Profilstäben 6 und 7
herablaufende Kondensat auffängt und zu einer Sammelstelle
führt.At the lower end of the
Wie in Fig. 2 angedeutet, sind die beiden Gitter 3a mittels
Schrauben 9 und Abstandsbolzen 10 lösbar miteinander
verbunden und abnehmbar, damit sie gespült und damit
gereinigt werden können. Jeweils die U-Profilstäbe 6 des
Gitters 3a und/oder die U-Profilstäbe 7 des Gitters 3b sind
durch eine oder mehrere Querleisten 11 bzw. 12 auf der
Rückseite der U-Profilstäbe 6 bzw. 7 miteinander verbunden,
um dem Gitter 3a bzw. 3b einen Zusammenhalt zu geben. As indicated in Fig. 2, the two
Im Innenraum 5 der Dunstabzugshaube ist eine Sprüheinrichtung
für Reinigungswasser angeordnet, die bei dem dargestellten
Ausführungsbeispiel eine Sprühlanze 13 aufweist mit mehreren,
in Längsrichtung und in Umfangsrichtung verteilten Sprühdüsen.
Die Sprühlanze 13 ist im wesentlichen parallel und im
Abstand zur Rückseite des Prallabscheiders 3 angeordnet. Sie
ist in den Seitenwänden des Gehäuses 1 um ihre Längsachse
drehbar gelagert und mit einem (nicht dargestellten)
Drehantrieb verbunden und wird an ihrem einen Ende mit
Reinigungswasser beschickt.There is a spray device in the
Bei der Drehbewegung der Sprühlanze 13 werden die Innenwände
des gesamten Innenraums 5 und die Rückseite des Prallabscheiders
3 intensiv besprüht und dadurch von anhaftendem
Kondensat gereinigt. Das Reinigungswasser läuft in einen
Sammelsumpf 14 am Boden des Innenraums 5 und wird von dort
durch eine in Fig. 1 nur angedeutete Leitung 15 abgezogen.When the spray lance 13 rotates, the inner walls
of the
Die Sprühreinigung der Dunstabzugshaube erfolgt in vorgegebenen zeitlichen Intervallen, deren Länge sich nach dem Anfall von Kondensat richtet.Spray cleaning of the extractor hood is carried out in the specified manner time intervals, the length of which varies according to the seizure directed by condensate.
Im Zusammenhang mit dieser Sprühreinigung oder unabhängig
davon kann die zusätzliche Reinigung des Prallabscheiders 3
in der beschriebenen Weise erfolgen, wobei die beiden Gitter
3a und 3b nach dem Lösen der Schrauben 9 auseinandergenommen
und gespült werden.In connection with this spray cleaning or independently
of which the additional cleaning of the
Anstelle der beschriebenen drehbaren Sprühlanze 13 kann auch
vorgesehen werden, daß die Sprüheinrichtung einen längsverfahrbaren
Sprühwagen aufweist, dessen Sprühdüsen bei der
Längsbewegung des Sprühwagens die Innenwände der Dunstabzugshaube
einschließlich der Rückwand des Prallabscheiders 3
bestreichen. Eine solche Vorrichtung fällt jedoch nicht
unter den Schutzbereich der Ansprüche.Instead of the
Bei dem in den Fig. 3 und 4 gezeigten Ausführungsbeispiel
einer Dunstabzugshaube weist deren Gehäuse 1' eine geschlossene,
zum Sammelsumpf 14 abfallende Bodenwand 16 auf sowie
einen seitlichen Lufteinlaß 17. Unterhalb des Lufteinlasses
17 ist eine Wassersammelrinne 18, die über mindestens eine
abfallende Ablaufleitung 19 an den Sammelsumpf 14 angeschlossen
ist.In the embodiment shown in FIGS. 3 and 4
an extractor hood, its housing 1 'has a closed,
to the
Der Lufteinlaß 17 weist eine oberhalb der Wassersammelrinne
18 angeordnete Prallwand 20 auf für in den Lufteinlaß 17
eintretende Sprühstrahlen der Sprüheinrichtung 13'. Die
Prallwand 20 wird hierbei von der nach unten umgelenkten
Innenwand des Lufteinlasses 17 gebildet.The
Die eintrittsseitige Bodenkante 21 des Lufteinlasses 17 ist
über der Wassersammelrinne 18 angeordnet, so daß das von der
Bodenkante 21 abtropfende Reinigungswasser in die Wassersammerinne
18 gelangt.The inlet-
Bei dem dargestellten Ausführungsbeispiel wird die eintrittsseitige
Bodenkante 21 des Lufteinlasses 17 durch ein
Rundprofil, beispielsweise ein Rohr, gebildet.In the illustrated embodiment, the entry
Beim Ausführungsbeispiel der Dunstabzugshaube nach Fig. 3
bildet die Unterseite 16a der abfallenden Bodenwand 16 die
Decke einer Luftsammelhaube 1a, deren Luftabzugsöffnung 22
unterhalb des Lufteinlasses 17 der Dunstabzugshaube liegt.
Der Strömungsweg der Luft von der Luftabzugsöffnung 22 in den
Lufteinlaß 17 wird um die abgerundete Bodenkante 21 herum um
mehr als 120°, vorzugsweise bis zu 180° umgelenkt. Diese
Umlenkung des Strömungskanals für die in die Dunstabzugshaube
eintretende Luft und die Anordnung der Wassersammelrinne 18
unterhalb der Umlenkstelle führen dazu, daß der in den
Lufteinlaß 17 eintretende Anteil des Reinigungswassers sicher
und vollständig aufgefangen wird, wobei aber gleichzeitig
alle Innenflächen der Dunstabzugshaube, an denen sich
Kondensat niederschlagen kann, durch Besprühen gereinigt
werden. Die abfallenden Ablaufleitungen 19 sind hierbei als
Rohre beiderseits der Luftsammelhaube 1a angeordnet und an
den Sammelsumpf 14 angeschlossen.In the embodiment of the extractor hood according to FIG. 3
forms the
Bei dem in den Fig. 3 und 4 gezeigten Ausführungsbeispiel
weist die Sprüheinrichtung 13' einen um eine Drehachse 23,
die vorzugsweise senkrecht verläuft, drehbar gelagerten
Sprühkopf 24 auf (Fig. 4), der frei drehbar am unteren Ende
einer Wasserzulaufleitung 25 gelagert ist.In the embodiment shown in FIGS. 3 and 4
the spray device 13 'has an axis of
Seitlich vom drehbaren Sprühkopf 24 sind Sprühdüsen 25
angeordnet, deren Sprühstrahlen 26 in der Weise abgewinkelt
sind, daß die von ihnen ausgeübten Reaktionskräfte ein
Drehmoment um die Drehachse 23 ausüben. Dadurch wird der
Sprühkopf 24 zu seiner Drehbewegung angetrieben.Spray
Zusätzlich weist der Sprühkopf 24 eine schräg nach oben
gerichtete Flachstrahldüse 27 und eine schräg nach unten
gerichtete Flachstrahldüse 28 auf, so daß bei der Drehbewegung
des Sprühkopfes 24 jede Stelle des Innenraums der
Dunstabzugshaube in durch die Drehfrequenz des Sprühkopfes 24
vorgegebenen kurzen Intervallen besprüht und somit gereinigt
wird.In addition, the
Claims (9)
- Method for cleaning extractor hoods, cleaning water being sprayed in the interior space (5) of the extractor hood by a first rotatable spray device (13) and the cleaning water being drawn off from a collecting sump (14) at the bottom of the interior space (5), characterized in that the entire interior space (5) of the extractor hood is sprayed substantially completely with cleaning water at intervals by means of the first rotatable spray device (13).
- Apparatus for carrying out the method according to Claim 1, with an extractor hood with a first rotatable spray device (13), arranged in the interior space (5) of the extractor hood, and with a collecting sump (14) for cleaning water, arranged at the bottom of the interior space (5) of the extractor hood, characterized in that the first spray device (13) for cleaning water is designed as a spray lance with a number of spray nozzles distributed in the longitudinal direction and in the circumferential direction, which is mounted rotatably about its longitudinal axis and is connected to a rotary drive.
- Apparatus according to Claim 2, characterized in that the spray lance (13) is arranged substantially parallel to and at a distance from the rear side of an impingement separator (3).
- Apparatus according to Claim 3, characterized in that the extractor hood has a closed bottom wall (16), sloping down to the collecting sump (14), and a lateral air inlet (17), and in that a water collecting channel (18) is arranged underneath the air inlet (17).
- Apparatus according to Claim 4, characterized in that the water collecting channel (18) is connected to the collecting sump (14) by means of at least one descending drainage line (19).
- Apparatus according to Claim 4, characterized in that the air inlet (17) has a baffle wall (20), arranged above the water collecting channel (18), for spray jets of a second spray device (13') entering the air inlet (17).
- Apparatus according to Claim 4, characterized in that an inlet-side bottom edge (21) of the air inlet (17) is arranged above the water collecting channel (18).
- Apparatus according to Claim 7, characterized in that the inlet-side bottom edge (21) of the air inlet (17) is formed by a round profile, for example a tube.
- Apparatus according to Claim 4, characterized in that the underside (16a) of the downward-sloping bottom wall (16) forms the top of an air collecting hood (1a), the air extract opening (22) of which lies underneath the air inlet (17) of the extractor hood, and in that the flow path of the air from the air extract opening (22) into the air inlet (17) is deflected by more than 120°.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19912913A DE19912913A1 (en) | 1999-03-22 | 1999-03-22 | Method and device for cleaning extractor hoods |
| DE19912913 | 1999-03-22 | ||
| PCT/EP2000/002494 WO2000056202A2 (en) | 1999-03-22 | 2000-03-21 | Method and device for cleaning extractor hoods |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1175173A2 EP1175173A2 (en) | 2002-01-30 |
| EP1175173B1 true EP1175173B1 (en) | 2004-05-26 |
Family
ID=7901972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00920529A Expired - Lifetime EP1175173B1 (en) | 1999-03-22 | 2000-03-21 | Method and apparatus for cleaning extractor hoods |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1175173B1 (en) |
| AT (1) | ATE267987T1 (en) |
| DE (2) | DE19912913A1 (en) |
| PL (1) | PL193019B1 (en) |
| WO (1) | WO2000056202A2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8746231B2 (en) | 2006-03-10 | 2014-06-10 | Kbs Automist, Llc | Range exhaust cleaning system and method |
| CN104251505A (en) * | 2013-06-28 | 2014-12-31 | 艾利卡公司 | Household extractor hood |
| CN105066199A (en) * | 2015-06-11 | 2015-11-18 | 淮南智辉装饰工程有限公司 | Automatic oil fume exhaust ventilator cleaning apparatus |
| CN106885282A (en) * | 2017-03-31 | 2017-06-23 | 广东美的厨房电器制造有限公司 | Lampblack absorber |
| CN112902267A (en) * | 2021-04-07 | 2021-06-04 | 重庆唐人恒强厨房设备制造有限公司 | Environment-friendly hydrologic cycle self-cleaning oil extraction cigarette purifies all-in-one |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10309117B4 (en) * | 2003-02-28 | 2012-08-02 | Manfred H. Langner | Hood |
| DE10314410B4 (en) * | 2003-03-28 | 2007-03-29 | Langner, Manfred H. | Hood |
| PL1775035T3 (en) * | 2005-10-14 | 2017-02-28 | Südluft Systemtechnik GmbH & Co. KG | Self-cleaning exhaust hood and system for cleaning an exhaust hood |
| US7832391B2 (en) | 2006-03-10 | 2010-11-16 | Kellogg, Bruns & Smeija, LLC | Range exhaust cleaning system |
| DE102007058467B4 (en) * | 2007-12-04 | 2010-06-17 | Miele & Cie. Kg | Condensate barrier for a fume extraction device for the removal of exhaust air |
| CN105371321B (en) * | 2014-08-26 | 2018-03-30 | 广东美的厨房电器制造有限公司 | Smoke exhaust ventilator and its control method |
| CN109059077B (en) * | 2018-01-11 | 2020-06-05 | 广东美的厨房电器制造有限公司 | Range hood and cleaning system and joint assembly for range hood |
| US11953228B2 (en) | 2018-02-27 | 2024-04-09 | BSH Hausgeräte GmbH | Table fan and method for cleaning a table fan |
| CN113266862A (en) * | 2021-06-22 | 2021-08-17 | 珠海格力电器股份有限公司 | Fume exhaust fan |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3628311A (en) * | 1969-07-07 | 1971-12-21 | Nino S Inc | Air purification systems |
| US3616744A (en) * | 1969-08-21 | 1971-11-02 | Donald D Jensen | Air cleansing system for cooking ranges |
| DE3416692A1 (en) * | 1984-05-05 | 1985-11-07 | Wilfried 3000 Hannover Rosendahl | Extractor hood for large kitchens |
| FR2594725B2 (en) * | 1985-07-09 | 1988-09-02 | Fritsch Sa | KITCHEN HOOD |
| AT401102B (en) * | 1994-09-08 | 1996-06-25 | Lechner Josef Ing | COOKER HOOD OD. DGL. |
-
1999
- 1999-03-22 DE DE19912913A patent/DE19912913A1/en not_active Withdrawn
-
2000
- 2000-03-21 WO PCT/EP2000/002494 patent/WO2000056202A2/en active IP Right Grant
- 2000-03-21 PL PL351247A patent/PL193019B1/en not_active IP Right Cessation
- 2000-03-21 EP EP00920529A patent/EP1175173B1/en not_active Expired - Lifetime
- 2000-03-21 AT AT00920529T patent/ATE267987T1/en active
- 2000-03-21 DE DE50006604T patent/DE50006604D1/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8746231B2 (en) | 2006-03-10 | 2014-06-10 | Kbs Automist, Llc | Range exhaust cleaning system and method |
| CN104251505A (en) * | 2013-06-28 | 2014-12-31 | 艾利卡公司 | Household extractor hood |
| CN104251505B (en) * | 2013-06-28 | 2018-01-23 | 爱瑞卡股份公司 | Family expenses aspirate hood |
| CN105066199A (en) * | 2015-06-11 | 2015-11-18 | 淮南智辉装饰工程有限公司 | Automatic oil fume exhaust ventilator cleaning apparatus |
| CN106885282A (en) * | 2017-03-31 | 2017-06-23 | 广东美的厨房电器制造有限公司 | Lampblack absorber |
| CN112902267A (en) * | 2021-04-07 | 2021-06-04 | 重庆唐人恒强厨房设备制造有限公司 | Environment-friendly hydrologic cycle self-cleaning oil extraction cigarette purifies all-in-one |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2000056202A2 (en) | 2000-09-28 |
| PL351247A1 (en) | 2003-04-07 |
| WO2000056202A3 (en) | 2000-12-21 |
| PL193019B1 (en) | 2007-01-31 |
| DE19912913A1 (en) | 2000-09-28 |
| ATE267987T1 (en) | 2004-06-15 |
| DE50006604D1 (en) | 2004-07-01 |
| EP1175173A2 (en) | 2002-01-30 |
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